Discrete convexity in joint winner property. [arXiv]
Yuni Iwamasa, Kazuo Murota, and Stanislav ivný.
On a general framework for network representability in discrete optimization. [arXiv]
// the full version of the same-title paper in ISCO'16
Refereed Journal Papers
On k-submodular relaxation. [Journal Website] [pdf]
Hiroshi Hirai and Yuni Iwamasa. SIAM Journal on Discrete Mathematics, 30(3):1726--1736, 2016.
Networks maximizing the consensus time of voter models. [Journal Website]
Yuni Iwamasa and Naoki Masuda. Physical Review E, 90, 012816, 2014.
Refereed Conference Proceedings
The quadratic M-convexity testing problem.
Yuni Iwamasa. Proceedings of the 10th Japanese-Hungarian Symposium on Discrete Mathematics and Its Applications (JH'17), 2017.
On a general framework for network representability in discrete optimization.
Yuni Iwamasa. Proceedings of the 4th International Symposium on Combinatorial Optimization (ISCO'16), LNCS 9849, pp.369--380, 2016.
On k-submodular relaxation.
Hiroshi Hirai and Yuni Iwamasa. Proceedings of the 9th Hungarian-Japanese Symposium on Discrete Mathematics and Its Applications (HJ'15), pp.331--335, 2015.
Threshold influence model for allocating advertising budgets.
Atsushi Miyauchi, Yuni Iwamasa, Takuro Fukunaga, and Naonori Kakimura. Proceedings of the 32nd International Conference on Machine Learning (ICML'15), pp.1395--1404, 2015.